<?php
namespace Cart;
class Cart {
    private $data = array();

    public function __construct($registry) {
        $this->config = $registry->get('config');
        $this->customer = $registry->get('customer');
        $this->session = $registry->get('session');
        $this->db = $registry->get('db');
        $this->tax = $registry->get('tax');
        $this->weight = $registry->get('weight');
        $this->request = $registry->get('request');

        // Remove all the expired carts with no customer ID
        $this->db->query("DELETE FROM " . DB_PREFIX . "cart WHERE (api_id > '0' OR customer_id = '0') AND date_added < DATE_SUB(NOW(), INTERVAL 1 HOUR)");

        if ($this->customer->getId()) {
            // We want to change the session ID on all the old items in the customers cart
            $this->db->query("UPDATE " . DB_PREFIX . "cart SET session_id = '" . $this->db->escape($this->session->getId()) . "' WHERE api_id = '0' AND customer_id = '" . (int)$this->customer->getId() . "'");

            // Once the customer is logged in we want to update the customers cart
            $cart_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "cart WHERE api_id = '0' AND customer_id = '0' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");

            foreach ($cart_query->rows as $cart) {
                $this->db->query("DELETE FROM " . DB_PREFIX . "cart WHERE cart_id = '" . (int)$cart['cart_id'] . "'");

                // The advantage of using $this->add is that it will check if the products already exist and increaser the quantity if necessary.
                $this->add($cart['product_id'], $cart['quantity'], json_decode($cart['option']), $cart['recurring_id']);
            }
        }
    }

    public function selOnlyOnProduct($product_id){
        $this->db->query("update " . DB_PREFIX . "cart set is_selected = 0 WHERE product_id<>{$product_id} and api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");
    }

    public function getProducts($is_selected=false) {
        $product_data = array();
        $cart_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "cart WHERE api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");

        foreach ($cart_query->rows as $cart) {
            $stock = true;
            if($is_selected && $cart['is_selected'] == 0){continue;}

            $product_query = $this->db->query("SELECT p.*,pd.*,pm.name as manufacturer FROM " . DB_PREFIX . "product_to_store p2s LEFT JOIN " . DB_PREFIX . "product p ON (p2s.product_id = p.product_id) LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "manufacturer pm ON (p.manufacturer_id = pm.manufacturer_id) WHERE p2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND p2s.product_id = '" . (int)$cart['product_id'] . "' AND pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.date_available <= NOW() AND p.status = '1'");

            if ($product_query->num_rows && ($cart['quantity'] > 0)) {
                $option_price = 0;
                $option_points = 0;
                $option_weight = 0;

                $option_data = array();

                foreach (json_decode($cart['option']) as $product_option_id => $value) {
                    $option_query = $this->db->query("SELECT po.product_option_id, po.option_id, od.name, o.type FROM " . DB_PREFIX . "product_option po LEFT JOIN `" . DB_PREFIX . "option` o ON (po.option_id = o.option_id) LEFT JOIN " . DB_PREFIX . "option_description od ON (o.option_id = od.option_id) WHERE po.product_option_id = '" . (int)$product_option_id . "' AND po.product_id = '" . (int)$cart['product_id'] . "' AND od.language_id = '" . (int)$this->config->get('config_language_id') . "'");

                    if ($option_query->num_rows) {
                        if ($option_query->row['type'] == 'select' || $option_query->row['type'] == 'radio') {
                            $option_value_query = $this->db->query("SELECT pov.option_value_id, ovd.name, pov.quantity, pov.subtract, pov.price, pov.price_prefix, pov.points, pov.points_prefix, pov.weight, pov.weight_prefix,pov.is_compose,pov.skus,pov.min_sale_num,pov.origin_price,pov.status FROM " . DB_PREFIX . "product_option_value pov LEFT JOIN " . DB_PREFIX . "option_value ov ON (pov.option_value_id = ov.option_value_id) LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (ov.option_value_id = ovd.option_value_id) WHERE pov.product_option_value_id = '" . (int)$value . "' AND pov.product_option_id = '" . (int)$product_option_id . "' AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

                            if ($option_value_query->num_rows) {
                                if ($option_value_query->row['price_prefix'] == '+') {
                                    $option_price += $option_value_query->row['price'];
                                } elseif ($option_value_query->row['price_prefix'] == '-') {
                                    $option_price -= $option_value_query->row['price'];
                                }

                                if ($option_value_query->row['points_prefix'] == '+') {
                                    $option_points += $option_value_query->row['points'];
                                } elseif ($option_value_query->row['points_prefix'] == '-') {
                                    $option_points -= $option_value_query->row['points'];
                                }

                                if ($option_value_query->row['weight_prefix'] == '+') {
                                    $option_weight += $option_value_query->row['weight'];
                                } elseif ($option_value_query->row['weight_prefix'] == '-') {
                                    $option_weight -= $option_value_query->row['weight'];
                                }

                                if (empty($option_value_query->row['is_compose']) && ($option_value_query->row['subtract'] && (!$option_value_query->row['quantity'] || ($option_value_query->row['quantity'] < $cart['quantity'])))) {
                                    $stock = false;
                                }else if(!empty($option_value_query->row['is_compose']) && intval($cart['quantity']) >= 1 && !empty($option_value_query->row['skus'])){
                                    $stock = $this->checkComposeSkus((int)$cart['product_id'],$option_value_query->row['skus'],(int)$cart['quantity']);
                                }

                                $option_data[] = array(
                                    'product_option_id'       => $product_option_id,
                                    'product_option_value_id' => $value,
                                    'option_id'               => $option_query->row['option_id'],
                                    'option_value_id'         => $option_value_query->row['option_value_id'],
                                    'name'                    => $option_query->row['name'],
                                    'value'                   => $option_value_query->row['name'],
                                    'type'                    => $option_query->row['type'],
                                    'quantity'                => $option_value_query->row['quantity'],
                                    'subtract'                => $option_value_query->row['subtract'],
                                    'price'                   => $option_value_query->row['price'],
                                    'price_prefix'            => $option_value_query->row['price_prefix'],
                                    'points'                  => $option_value_query->row['points'],
                                    'points_prefix'           => $option_value_query->row['points_prefix'],
                                    'weight'                  => $option_value_query->row['weight'],
                                    'weight_prefix'           => $option_value_query->row['weight_prefix'],
                                    'skus'           => $option_value_query->row['skus'],
                                    'is_compose'           => $option_value_query->row['is_compose'],
                                    'min_sale_num'           => $option_value_query->row['min_sale_num'],
                                    'origin_price'           => $option_value_query->row['origin_price'],
                                    'status'=> $option_value_query->row['status'],
                                );
                            }
                        } elseif ($option_query->row['type'] == 'checkbox' && is_array($value)) {
                            foreach ($value as $product_option_value_id) {
                                $option_value_query = $this->db->query("SELECT pov.option_value_id, pov.quantity, pov.subtract, pov.price, pov.price_prefix, pov.points, pov.points_prefix, pov.weight, pov.weight_prefix, ovd.name FROM " . DB_PREFIX . "product_option_value pov LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (pov.option_value_id = ovd.option_value_id) WHERE pov.product_option_value_id = '" . (int)$product_option_value_id . "' AND pov.product_option_id = '" . (int)$product_option_id . "' AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

                                if ($option_value_query->num_rows) {
                                    if ($option_value_query->row['price_prefix'] == '+') {
                                        $option_price += $option_value_query->row['price'];
                                    } elseif ($option_value_query->row['price_prefix'] == '-') {
                                        $option_price -= $option_value_query->row['price'];
                                    }

                                    if ($option_value_query->row['points_prefix'] == '+') {
                                        $option_points += $option_value_query->row['points'];
                                    } elseif ($option_value_query->row['points_prefix'] == '-') {
                                        $option_points -= $option_value_query->row['points'];
                                    }

                                    if ($option_value_query->row['weight_prefix'] == '+') {
                                        $option_weight += $option_value_query->row['weight'];
                                    } elseif ($option_value_query->row['weight_prefix'] == '-') {
                                        $option_weight -= $option_value_query->row['weight'];
                                    }

                                    if ($option_value_query->row['subtract'] && (!$option_value_query->row['quantity'] || ($option_value_query->row['quantity'] < $cart['quantity']))) {
                                        $stock = false;
                                    }

                                    $option_data[] = array(
                                        'product_option_id'       => $product_option_id,
                                        'product_option_value_id' => $product_option_value_id,
                                        'option_id'               => $option_query->row['option_id'],
                                        'option_value_id'         => $option_value_query->row['option_value_id'],
                                        'name'                    => $option_query->row['name'],
                                        'value'                   => $option_value_query->row['name'],
                                        'type'                    => $option_query->row['type'],
                                        'quantity'                => $option_value_query->row['quantity'],
                                        'subtract'                => $option_value_query->row['subtract'],
                                        'price'                   => $option_value_query->row['price'],
                                        'price_prefix'            => $option_value_query->row['price_prefix'],
                                        'points'                  => $option_value_query->row['points'],
                                        'points_prefix'           => $option_value_query->row['points_prefix'],
                                        'weight'                  => $option_value_query->row['weight'],
                                        'weight_prefix'           => $option_value_query->row['weight_prefix']
                                    );
                                }
                            }
                        } elseif ($option_query->row['type'] == 'text' || $option_query->row['type'] == 'textarea' || $option_query->row['type'] == 'file' || $option_query->row['type'] == 'date' || $option_query->row['type'] == 'datetime' || $option_query->row['type'] == 'time') {
                            $option_data[] = array(
                                'product_option_id'       => $product_option_id,
                                'product_option_value_id' => '',
                                'option_id'               => $option_query->row['option_id'],
                                'option_value_id'         => '',
                                'name'                    => $option_query->row['name'],
                                'value'                   => $value,
                                'type'                    => $option_query->row['type'],
                                'quantity'                => '',
                                'subtract'                => '',
                                'price'                   => '',
                                'price_prefix'            => '',
                                'points'                  => '',
                                'points_prefix'           => '',
                                'weight'                  => '',
                                'weight_prefix'           => ''
                            );
                        }
                    }
                }

                $price = $product_query->row['price'];

                // Product Discounts
                $discount_quantity = 0;

                foreach ($cart_query->rows as $cart_2) {
                    if ($cart_2['product_id'] == $cart['product_id']) {
                        $discount_quantity += $cart_2['quantity'];
                    }
                }

                $product_discount_query = $this->db->query("SELECT price FROM " . DB_PREFIX . "product_discount WHERE product_id = '" . (int)$cart['product_id'] . "' AND customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND quantity <= '" . (int)$discount_quantity . "' AND ((date_start = '0000-00-00' OR date_start < NOW()) AND (date_end = '0000-00-00' OR date_end > NOW())) ORDER BY quantity DESC, priority ASC, price ASC LIMIT 1");

                if ($product_discount_query->num_rows) {
                    $price = $product_discount_query->row['price'];
                }

                // Product Specials
                $product_special_query = $this->db->query("SELECT price FROM " . DB_PREFIX . "product_special WHERE product_id = '" . (int)$cart['product_id'] . "' AND customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND ((date_start = '0000-00-00' OR date_start < NOW()) AND (date_end = '0000-00-00' OR date_end > NOW())) ORDER BY priority ASC, price ASC LIMIT 1");

                if ($product_special_query->num_rows) {
                    $price = $product_special_query->row['price'];
                }



                // Reward Points
                $product_reward_query = $this->db->query("SELECT points FROM " . DB_PREFIX . "product_reward WHERE product_id = '" . (int)$cart['product_id'] . "' AND customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "'");

                if ($product_reward_query->num_rows) {
                    $reward = $product_reward_query->row['points'];
                } else {
                    $reward = 0;
                }

                // Downloads
                $download_data = array();

                $download_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_to_download p2d LEFT JOIN " . DB_PREFIX . "download d ON (p2d.download_id = d.download_id) LEFT JOIN " . DB_PREFIX . "download_description dd ON (d.download_id = dd.download_id) WHERE p2d.product_id = '" . (int)$cart['product_id'] . "' AND dd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

                foreach ($download_query->rows as $download) {
                    $download_data[] = array(
                        'download_id' => $download['download_id'],
                        'name'        => $download['name'],
                        'filename'    => $download['filename'],
                        'mask'        => $download['mask']
                    );
                }

                // Stock
                if (!$product_query->row['quantity'] || ($product_query->row['quantity'] < $cart['quantity'])) {
                    $stock = false;
                }

                $recurring_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "recurring r LEFT JOIN " . DB_PREFIX . "product_recurring pr ON (r.recurring_id = pr.recurring_id) LEFT JOIN " . DB_PREFIX . "recurring_description rd ON (r.recurring_id = rd.recurring_id) WHERE r.recurring_id = '" . (int)$cart['recurring_id'] . "' AND pr.product_id = '" . (int)$cart['product_id'] . "' AND rd.language_id = " . (int)$this->config->get('config_language_id') . " AND r.status = 1 AND pr.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "'");

                if ($recurring_query->num_rows) {
                    $recurring = array(
                        'recurring_id'    => $cart['recurring_id'],
                        'name'            => $recurring_query->row['name'],
                        'frequency'       => $recurring_query->row['frequency'],
                        'price'           => $recurring_query->row['price'],
                        'cycle'           => $recurring_query->row['cycle'],
                        'duration'        => $recurring_query->row['duration'],
                        'trial'           => $recurring_query->row['trial_status'],
                        'trial_frequency' => $recurring_query->row['trial_frequency'],
                        'trial_price'     => $recurring_query->row['trial_price'],
                        'trial_cycle'     => $recurring_query->row['trial_cycle'],
                        'trial_duration'  => $recurring_query->row['trial_duration']
                    );
                } else {
                    $recurring = false;
                }

                //加上浮动价格
                $sale_price = $price + $option_price;

                $product_data[] = array(
                    'cart_id'         => $cart['cart_id'],
                    'product_id'      => $product_query->row['product_id'],
                    'name'            => $product_query->row['name'],
                    'manufacturer'    => $product_query->row['manufacturer'],
                    'model'           => $product_query->row['model'],
                    'shipping'        => $product_query->row['shipping'],
                    'image'           => $product_query->row['image'],
                    'option'          => $option_data,
                    'download'        => $download_data,
                    'quantity'        => $cart['quantity'],
                    'minimum'         => $product_query->row['minimum'],
                    'maxnum'          => (int)$product_query->row['quantity'],
                    'subtract'        => $product_query->row['subtract'],
                    'stock'           => $stock,
                    'price'           => $sale_price,
                    'total'           => $sale_price * $cart['quantity'],
                    'reward'          => $reward * $cart['quantity'],
                    'points'          => ($product_query->row['points'] ? ($product_query->row['points'] + $option_points) * $cart['quantity'] : 0),
                    'tax_class_id'    => $product_query->row['tax_class_id'],
                    'weight'          => ($product_query->row['weight'] + $option_weight) * $cart['quantity'],
                    'weight_class_id' => $product_query->row['weight_class_id'],
                    'length'          => $product_query->row['length'],
                    'width'           => $product_query->row['width'],
                    'height'          => $product_query->row['height'],
                    'length_class_id' => $product_query->row['length_class_id'],
                    'recurring'       => $recurring,
                    'onepage' => (int)$cart['onepage'],
                    'is_selected'     => $cart['is_selected']
                );
            } else {
                $this->remove($cart['cart_id']);
            }
        }

        return $product_data;
    }

    public function getCustomerIdByTracking($code){
        $sql = "SELECT * FROM " . DB_PREFIX . "customer_affiliate WHERE tracking='{$code}' limit 1";
        $query = $this->db->query($sql);
        if($query){
            return $query->row['customer_id'];
        }
        return false;
    }

    public function checkComposeSkus($product_id,$skus,$buyNumber){
        if(!is_array($skus)){
            $skus = json_decode($skus,true);
        }
        if(empty($skus)){return  false;}
        $arr = [];
        $total = count($skus);
        foreach ($skus as $k=>$item){
            $arr[] = '(option_skuid=\''.$item['sku'].'\' and quantity>='.(intval($buyNumber)*intval(($item['number']??1))*1) .')';
        }
        $where = implode(' or ',$arr);
        $query = $this->db->query("select * from ".DB_PREFIX."product_option_value where product_id=$product_id and ($where)");
        return $query->num_rows == $total?true:false;
    }

    public function doselect($cart_id,$act){
        $this->db->query("UPDATE ".DB_PREFIX."cart set is_selected=".(int)$act." where cart_id=".$cart_id);
    }

    public function getOptionData($product_id,$option){
        $option_data = [];
        foreach ($option as $product_option_id=>$value){
            $option_query = $this->db->query("SELECT po.product_option_id, po.option_id, od.name, o.type FROM " . DB_PREFIX . "product_option po LEFT JOIN `" . DB_PREFIX . "option` o ON (po.option_id = o.option_id) LEFT JOIN " . DB_PREFIX . "option_description od ON (o.option_id = od.option_id) WHERE po.product_option_id = '" . (int)$product_option_id . "' AND po.product_id = '" . (int)$product_id . "' AND od.language_id = '" . (int)$this->config->get('config_language_id') . "'");
            if ($option_query->num_rows) {
                if ($option_query->row['type'] == 'select' || $option_query->row['type'] == 'radio') {
                    $option_value_query = $this->db->query("SELECT pov.option_value_id, ovd.name, pov.quantity, pov.subtract, pov.price, pov.price_prefix, pov.points, pov.points_prefix, pov.weight, pov.weight_prefix FROM " . DB_PREFIX . "product_option_value pov LEFT JOIN " . DB_PREFIX . "option_value ov ON (pov.option_value_id = ov.option_value_id) LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (ov.option_value_id = ovd.option_value_id) WHERE pov.product_option_value_id = '" . (int)$value . "' AND pov.product_option_id = '" . (int)$product_option_id . "' AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "'");
                    if ($option_value_query->num_rows) {
                        $option_data[] = array(
                            'product_option_id'       => $product_option_id,
                            'product_option_value_id' => $value,
                            'option_id'               => $option_query->row['option_id'],
                            'option_value_id'         => $option_value_query->row['option_value_id'],
                            'name'                    => $option_query->row['name'],
                            'value'                   => $option_value_query->row['name'],
                            'type'                    => $option_query->row['type'],
                            'quantity'                => $option_value_query->row['quantity'],
                            'subtract'                => $option_value_query->row['subtract'],
                            'price'                   => $option_value_query->row['price'],
                            'price_prefix'            => $option_value_query->row['price_prefix'],
                            'points'                  => $option_value_query->row['points'],
                            'points_prefix'           => $option_value_query->row['points_prefix'],
                            'weight'                  => $option_value_query->row['weight'],
                            'weight_prefix'           => $option_value_query->row['weight_prefix']
                        );
                    }
                } elseif ($option_query->row['type'] == 'checkbox' && is_array($value)) {
                    foreach ($value as $product_option_value_id) {
                        $option_value_query = $this->db->query("SELECT pov.option_value_id, pov.quantity, pov.subtract, pov.price, pov.price_prefix, pov.points, pov.points_prefix, pov.weight, pov.weight_prefix, ovd.name FROM " . DB_PREFIX . "product_option_value pov LEFT JOIN " . DB_PREFIX . "option_value_description ovd ON (pov.option_value_id = ovd.option_value_id) WHERE pov.product_option_value_id = '" . (int)$product_option_value_id . "' AND pov.product_option_id = '" . (int)$product_option_id . "' AND ovd.language_id = '" . (int)$this->config->get('config_language_id') . "'");

                        if ($option_value_query->num_rows) {
                            if ($option_value_query->row['price_prefix'] == '+') {
                                $option_price += $option_value_query->row['price'];
                            } elseif ($option_value_query->row['price_prefix'] == '-') {
                                $option_price -= $option_value_query->row['price'];
                            }

                            if ($option_value_query->row['points_prefix'] == '+') {
                                $option_points += $option_value_query->row['points'];
                            } elseif ($option_value_query->row['points_prefix'] == '-') {
                                $option_points -= $option_value_query->row['points'];
                            }

                            if ($option_value_query->row['weight_prefix'] == '+') {
                                $option_weight += $option_value_query->row['weight'];
                            } elseif ($option_value_query->row['weight_prefix'] == '-') {
                                $option_weight -= $option_value_query->row['weight'];
                            }



                            $option_data[] = array(
                                'product_option_id'       => $product_option_id,
                                'product_option_value_id' => $product_option_value_id,
                                'option_id'               => $option_query->row['option_id'],
                                'option_value_id'         => $option_value_query->row['option_value_id'],
                                'name'                    => $option_query->row['name'],
                                'value'                   => $option_value_query->row['name'],
                                'type'                    => $option_query->row['type'],
                                'quantity'                => $option_value_query->row['quantity'],
                                'subtract'                => $option_value_query->row['subtract'],
                                'price'                   => $option_value_query->row['price'],
                                'price_prefix'            => $option_value_query->row['price_prefix'],
                                'points'                  => $option_value_query->row['points'],
                                'points_prefix'           => $option_value_query->row['points_prefix'],
                                'weight'                  => $option_value_query->row['weight'],
                                'weight_prefix'           => $option_value_query->row['weight_prefix']
                            );
                        }
                    }
                } elseif ($option_query->row['type'] == 'text' || $option_query->row['type'] == 'textarea' || $option_query->row['type'] == 'file' || $option_query->row['type'] == 'date' || $option_query->row['type'] == 'datetime' || $option_query->row['type'] == 'time') {
                    $option_data[] = array(
                        'product_option_id'       => $product_option_id,
                        'product_option_value_id' => '',
                        'option_id'               => $option_query->row['option_id'],
                        'option_value_id'         => '',
                        'name'                    => $option_query->row['name'],
                        'value'                   => $value,
                        'type'                    => $option_query->row['type'],
                        'quantity'                => '',
                        'subtract'                => '',
                        'price'                   => '',
                        'price_prefix'            => '',
                        'points'                  => '',
                        'points_prefix'           => '',
                        'weight'                  => '',
                        'weight_prefix'           => ''
                    );
                }
            }
        }
        return $option_data;
    }

    public function add($product_id, $quantity = 1, $option = array(), $recurring_id = 0,$onepage=0) {
        $query = $this->db->query("SELECT COUNT(*) AS total FROM " . DB_PREFIX . "cart WHERE api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "' AND product_id = '" . (int)$product_id . "' AND recurring_id = '" . (int)$recurring_id . "' AND `option` = '" . $this->db->escape(json_encode($option)) . "'");

        if (!$query->row['total']) {
            $this->db->query("INSERT INTO " . DB_PREFIX . "cart SET onepage=$onepage,api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "', customer_id = '" . (int)$this->customer->getId() . "', session_id = '" . $this->db->escape($this->session->getId()) . "', product_id = '" . (int)$product_id . "', recurring_id = '" . (int)$recurring_id . "', `option` = '" . $this->db->escape(json_encode($option)) . "', quantity = '" . (int)$quantity . "', date_added = NOW()");
        } else {
            $this->db->query("UPDATE " . DB_PREFIX . "cart SET quantity = (quantity + " . (int)$quantity . ") WHERE api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "' AND product_id = '" . (int)$product_id . "' AND recurring_id = '" . (int)$recurring_id . "' AND `option` = '" . $this->db->escape(json_encode($option)) . "'");
        }
    }

    public function update($cart_id, $quantity) {
        $this->db->query("UPDATE " . DB_PREFIX . "cart SET quantity = '" . (int)$quantity . "' WHERE cart_id = '" . (int)$cart_id . "' AND api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");
    }

    public function updateOption($cart_id, $option = array()){
        $this->db->query("UPDATE " . DB_PREFIX . "cart SET `option` = '" . $this->db->escape(json_encode($option)) . "' WHERE cart_id = '" . (int)$cart_id . "' AND api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");
    }

    public function getOption($cart_id){
        $row = $this->db->query("SELECT * from " . DB_PREFIX . "cart WHERE cart_id = '" . (int)$cart_id . "' AND api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");
        if($row && isset($row->row['option'])){
            return json_decode($row->row['option'],true);
        }
        return [];
    }


    public function remove($cart_id) {
        $this->db->query("DELETE FROM " . DB_PREFIX . "cart WHERE cart_id = '" . (int)$cart_id . "' AND api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");
    }

    public function clear() {
        $this->db->query("DELETE FROM " . DB_PREFIX . "cart WHERE api_id = '" . (isset($this->session->data['api_id']) ? (int)$this->session->data['api_id'] : 0) . "' AND customer_id = '" . (int)$this->customer->getId() . "' AND session_id = '" . $this->db->escape($this->session->getId()) . "'");
    }

    public function getRecurringProducts($is_select = true) {
        $product_data = array();

        foreach ($this->getProducts($is_select) as $value) {
            if ($value['recurring']) {
                $product_data[] = $value;
            }
        }

        return $product_data;
    }

    public function getWeight($is_select = true) {
        $weight = 0;

        foreach ($this->getProducts($is_select) as $product) {
            if ($product['shipping']) {
                $weight += $this->weight->convert($product['weight'], $product['weight_class_id'], $this->config->get('config_weight_class_id'));
            }
        }

        return $weight;
    }

    public function getSubTotal($is_select = true) {
        $total = 0;

        foreach ($this->getProducts($is_select) as $product) {
            if($product['is_selected']){
                $total += $product['total'];
            }
        }

        return $total;
    }

    public function getTaxes($is_select = true) {
        $tax_data = array();

        foreach ($this->getProducts($is_select) as $product) {
            if ($product['tax_class_id'] && $product['is_selected']) {
                $tax_rates = $this->tax->getRates($product['price'], $product['tax_class_id']);

                foreach ($tax_rates as $tax_rate) {
                    if (!isset($tax_data[$tax_rate['tax_rate_id']])) {
                        $tax_data[$tax_rate['tax_rate_id']] = ($tax_rate['amount'] * $product['quantity']);
                    } else {
                        $tax_data[$tax_rate['tax_rate_id']] += ($tax_rate['amount'] * $product['quantity']);
                    }
                }
            }
        }

        return $tax_data;
    }

    public function getTotal($is_select = true) {
        $total = 0;

        foreach ($this->getProducts($is_select) as $product) {
            $total += $this->tax->calculate($product['price'], $product['tax_class_id'], $this->config->get('config_tax')) * $product['quantity'];
        }

        return $total;
    }

    public function countProducts($is_select = true) {
        $product_total = 0;

        $products = $this->getProducts($is_select);

        foreach ($products as $product) {
            $product_total += $product['quantity'];
        }

        return $product_total;
    }

    public function hasProducts($is_select = true) {
        return count($this->getProducts($is_select));
    }

    public function hasRecurringProducts() {
        return count($this->getRecurringProducts());
    }

    public function hasStock($is_select = true) {
        foreach ($this->getProducts($is_select) as $product) {
            if (!$product['stock']) {
                return false;
            }
        }

        return true;
    }

    public function hasShipping($is_select = true) {
        foreach ($this->getProducts($is_select) as $product) {
            if ($product['shipping']) {
                return true;
            }
        }

        return false;
    }

    public function hasDownload($is_select = true) {
        foreach ($this->getProducts($is_select) as $product) {
            if ($product['download']) {
                return true;
            }
        }

        return false;
    }
}
